Protective wire clamp

Abstract

The invention relates to the technical field of strain clamps, in particular to a protective clamp which comprises a tensioning mechanism and two bodies. The two bodies are both provided with wedge-shaped sliding grooves, a wedge-shaped block is arranged in each sliding groove in a sliding mode, and a wire is installed between the two wedge-shaped blocks. The tensioning mechanism comprises a tensioning wheel and two tensioning rods, each tensioning rod is correspondingly installed on one body, and the tensioning wheel is located between the two tensioning rods and matched with the two tensioning rods in a spiral mode. According to the protection wire clamp, the tensioning mechanism is arranged to be matched with the two bodies, when the protection wire clamp is used, the tensioning wheel rotates to enable the two tensioning rods to be close to each other in the first direction, then the two tensioning rods enable the two bodies to be close to each other in the first direction, and the two bodies clamp a wire through the wedge-shaped block; the adjusting accuracy is improved, the structure is simple, the operation difficulty is reduced, and the installation process is simpler, more convenient and more efficient.

Description

Technical Field

[0001] The invention relates to the technical field of tension wire clamps, and in particular to a protective wire clamp. Background Art

[0002] During the installation and maintenance of power lines, long-distance transmission lines are prone to cable sag in the middle due to their own weight and external environmental factors (such as wind load, ice, etc.). This sag not only affects the appearance of the line, but more importantly, it may cause excessive cable sag, which in turn leads to problems such as insufficient safety distance to the ground and uneven distribution of line tension. In severe cases, it may even cause line disconnection accidents, threatening the safe and stable operation of the power grid.

[0003] In order to solve the above problems, tension clamps are usually installed on long-distance transmission lines to provide necessary support and protection. Tension clamps are generally divided into bolt-type tension clamps, wedge-shaped insulated tension clamps, etc. Among them, wedge-shaped insulated tension clamps have been widely used in power lines due to their simple structure, convenient installation, and good insulation performance. Traditional wedge-shaped insulated tension clamps usually consist of a clamp body and two wedge blocks. During installation, the tail of the wedge block is struck with a tool to cause relative sliding between the wedge block and the clamp body, and the self-locking characteristics of the wedge structure are used to generate downward pressure, thereby holding the conductor tightly and achieving pre-tightening and fixation.

[0004] However, the installation and disassembly process of the existing wedge-shaped insulated tension clamp is rather cumbersome, and usually requires the use of tools to knock the wedge block to apply or release pressure, which not only increases the difficulty of operation, but may also cause damage to the wedge block or the clamp body. During the installation process, the wedge block is not easy to be accurately installed into the clamp body and is prone to falling, affecting the installation efficiency and may even cause safety accidents. Summary of the invention

[0005] The invention provides a protective wire clamp to solve the problem that the existing wire clamp is complicated to install and remove.

[0006] A protective wire clamp of the present invention adopts the following technical scheme: a protective wire clamp, used for clamping a wire, comprises a tensioning mechanism and two bodies; the two bodies are arranged in sequence along a first direction and are respectively located on both sides of the wire, and the first direction is perpendicular to the axial direction of the wire; the two bodies are arranged face to face in the first direction, and the cross-section of the body perpendicular to the axial direction of the wire is a U-shaped structure, and the two ends on the same side of the body are respectively called the first free end and the second free end, the first free ends of the two bodies are rotatably connected, and the second free ends of the two bodies are connected through the tensioning mechanism; a The wire is located between the two wedge blocks, and when the wedge blocks slide along their corresponding bodies, the bodies can make the two wedge blocks approach each other or move away from each other in a first direction; the tensioning mechanism includes a tensioning wheel and two tensioning rods, the tensioning rods are arranged in a one-to-one correspondence with the bodies, each tensioning rod is arranged along the first direction and installed on the body corresponding to it, the tensioning wheel is located between the two tensioning rods and spirally matched with the two tensioning rods, the tensioning wheel contacts the wire and can rotate around the first direction, and the rotation of the tensioning wheel around the first direction can make the two tensioning rods approach each other or move away from each other in the first direction.

[0007] Furthermore, the first free ends of the two bodies are rotatably connected via a rotation shaft.

[0008] Furthermore, the tensioning wheel includes a wheel body and two sleeves, the two sleeves are arranged along the first direction, the two sleeves are respectively located at the two ends of the wheel body in the first direction, the sleeves and the tensioning rods are arranged one by one, and the sleeves are spirally matched with the corresponding tensioning rods.

[0009] Further, the two sleeves are respectively referred to as the first sleeve and the second sleeve, both of which are provided with internal threads, and the thread rotation directions of the internal threads on the first sleeve and the second sleeve are opposite. The two tensioning rods are respectively referred to as the first rod and the second rod, both of which are provided with external threads, and the thread rotation directions of the external threads on the first rod and the second rod are opposite. The external thread on the first rod is rotationally matched with the internal thread on the first sleeve, and the external thread on the second rod is rotationally matched with the internal thread on the second sleeve.

[0010] Further, two ends of the wedge block along the conductor axis are respectively referred to as a first end and a second end, and a distance from the first end to the conductor axis is greater than a distance from the second end to the conductor axis.

[0011] Furthermore, it also includes a hanging plate, which is a U-shaped structure, and both ends of the hanging plate on the same side are third free ends. The third free ends of the hanging plate are arranged in a one-to-one correspondence with the main body. The third free ends of the hanging plate and the corresponding main body are connected by bolts. The hanging plate is located on the side of the first end of the wedge block away from the second end of the wedge block in the axial direction of the wire.

[0012] Furthermore, the first rod is rotatably connected to a corresponding body, and the second rod is detachably connected to a corresponding body.

[0013] Furthermore, the two bodies are respectively called the first body and the second body, the first rod is arranged corresponding to the first body, the second rod is arranged corresponding to the second body, and the first rod is rotatably connected to the first body, the second rod is provided with a clamping block, and the second body is provided with a clamping rod, and the clamping block can be clamped with the clamping rod.

[0014] Furthermore, a plurality of tension wheels are provided, and the plurality of tension wheels are arranged in sequence along the axial direction of the conductor.

[0015] Furthermore, reinforcing ribs are fixedly provided on the surfaces of the two bodies.

[0016] The beneficial effects of the present invention are as follows: a protective wire clamp of the present invention cooperates with two main bodies by setting a tensioning mechanism. When in use, the two tensioning rods are rotated by the tensioning wheel to make the two tensioning rods approach each other in the first direction, and then the two main bodies are approached to each other in the first direction by the two tensioning rods. The two main bodies clamp the wire through the wedge block. Specifically, the degree of clamping of the wire by the wedge block can be adjusted by adjusting the rotation direction of the tensioning wheel, thereby improving the accuracy of adjustment, having a simple structure and reducing the difficulty of operation, and making the installation process more convenient and efficient. In the subsequent use process, when the tension of the wire causes the wedge block and the wire to slide synchronously relative to the main body, the wedge blocks can approach each other in the first direction to tension the wire, thereby realizing adaptive tensioning. Due to the movement of the wire, the wire will cause the tensioning wheel to rotate around the first direction, thereby making the two tensioning rods approach each other in the first direction to tension the wire. During use, the tensioning force is dynamically adjusted. If relative sliding occurs between the wire and the wedge block, the two tensioning rods can also approach each other in the first direction, thereby further enhancing the tensioning effect on the wire. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the overall structure of an embodiment of a protective wire clamp of the present invention after the wire is installed; Figure 2 It is a front view of the overall structure of an embodiment of a protective wire clamp of the present invention after the wire is installed; Figure 3 for Figure 2Sectional view along AA; Figure 4 A side view of the overall structure of an embodiment of a protective wire clamp of the present invention after the wire is installed; Figure 5 for Figure 4 Cross-sectional view along the middle line BB; Figure 6 It is a schematic diagram of a partial structure of an embodiment of a protective wire clamp of the present invention; Figure 7 for Figure 6 Cross-sectional view at the middle edge CC; Figure 8 for Figure 7 The enlarged view of point D in the middle; Fig. 9 is a schematic diagram of the overall structure of an embodiment of a protective wire clamp of the present invention; Fig.10 This is a disassembled diagram of the overall structure of an embodiment of a protective wire clamp of the present invention.

[0019] In the figure: 100, wire; 200, tensioning mechanism; 210, tensioning wheel; 211, wheel body; 212, first sleeve; 213, second sleeve; 220, tensioning rod; 221, first rod; 222, second rod; 223, clamping block; 300, main body; 301, reinforcing rib; 310, first main body; 320, second main body; 321, clamping rod; 400, wedge block; 500, rotating shaft; 600, hanging plate. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] An embodiment of a protective wire clamp of the present invention is as follows Figures 1 to 10 shown.

[0022] A protective wire clamp is used to clamp a wire 100, comprising a tensioning mechanism 200 and two bodies 300. The two bodies 300 are arranged in sequence along a first direction and are respectively located on both sides of the wire 100, and the first direction is perpendicular to the axial direction of the wire 100. The two bodies 300 are arranged face to face in the first direction, and the cross section of the body 300 perpendicular to the axial direction of the wire 100 is a U-shaped structure. The two ends of the body 300 located on the same side are respectively called the first free end and the second free end. The first free ends of the two bodies 300 are rotatably connected, and the second free ends of the two bodies 300 are connected through the tensioning mechanism 200. Both bodies 300 are provided with wedge-shaped slide grooves, and a wedge block 400 is slidably arranged in each slide groove. The wire 100 is located between the two wedge blocks 400, and when the wedge block 400 slides along its corresponding slide groove, the body 300 can make the two wedge blocks 400 approach or move away from each other in the first direction.

[0023] The tensioning mechanism 200 includes a tensioning wheel 210 and two tensioning rods 220. The tensioning rods 220 are arranged in a one-to-one correspondence with the main body 300. Each tensioning rod 220 is arranged along a first direction and installed on the main body 300 corresponding thereto. The tensioning wheel 210 is located between the two tensioning rods 220 and is spirally matched with the two tensioning rods 220. The tensioning wheel 210 is in contact with the conductor 100 and can rotate around the first direction. The rotation of the tensioning wheel 210 around the first direction can make the two tensioning rods 220 approach each other or move away from each other in the first direction.

[0024] Specifically, the first free ends of the two bodies 300 are rotatably connected via a rotating shaft 500 .

[0025] The body 300 is formed by casting aluminum, and a PFA (soluble polytetrafluoroethylene) layer is provided inside the body 300 to facilitate heat dissipation of the conductor 100. The wedge block 400 is made of insulating reinforced engineering plastics, and the surfaces of the two bodies 300 are fixedly provided with reinforcing ribs 301, and a plurality of reinforcing ribs 301 are provided, and the plurality of reinforcing ribs 301 are evenly distributed on the surface of the body 300 along the axial direction of the conductor 100.

[0026] In this embodiment, a tensioning mechanism 200 is provided to cooperate with two bodies 300. When in use, the wire 100 is clamped between the two wedge blocks 400, so that the tensioning wheel 210 contacts the wire 100, and then the tensioning wheel 210 is rotated. The two tensioning rods 220 are rotated to approach each other in the first direction, and then the two bodies 300 are approached to each other in the first direction through the two tensioning rods 220. The two bodies 300 clamp the wire 100 through the wedge blocks 400. Specifically, the degree of clamping of the wedge blocks 400 on the wire 100 can be adjusted by adjusting the rotation direction of the tensioning wheel 210, thereby improving the accuracy of adjustment, simplifying the structure, reducing the difficulty of operation, and making the installation process simpler and more efficient. And in the subsequent use process, when the tension of the wire 100 causes the wedge block 400 and the wire 100 to slide synchronously relative to the body 300, by setting the installation direction of the body 300, when the wedge block 400 and the wire 100 slide synchronously relative to the body 300, the wedge blocks 400 can approach each other in the first direction to tension the wire 100, thereby realizing adaptive tensioning, and due to the movement of the wire 100, the wire 100 will cause the tensioning wheel 210 to rotate around the first direction, and by setting the rotation direction of the spiral cooperation between the tensioning wheel 210 and the tensioning rod 220, when the wire 100 moves along the direction of the tension and causes the tensioning wheel 210 to rotate around the first direction, the two tensioning rods 220 can approach each other in the first direction to tension the wire 100, and dynamically adjust the tensioning force during use, and if relative sliding occurs between the wire 100 and the wedge block 400, the two tensioning rods 220 can also approach each other in the first direction to further enhance the tensioning effect on the wire 100.

[0027] In a further embodiment, the tensioning wheel 210 includes a wheel body 211 and two sleeves, both of which are arranged along the first direction, and the two sleeves are respectively located at the two ends of the wheel body 211 in the first direction. The sleeves are arranged in a one-to-one correspondence with the tensioning rod 220, and the sleeves are spirally matched with the corresponding tensioning rod 220.

[0028] Specifically, the two sleeves are respectively called the first sleeve 212 and the second sleeve 213, and the first sleeve 212 and the second sleeve 213 are both provided with internal threads, and the thread rotation directions of the internal threads on the first sleeve 212 and the second sleeve 213 are opposite. The two tensioning rods 220 are respectively called the first rod 221 and the second rod 222, and the first rod 221 and the second rod 222 are both provided with external threads, and the thread rotation directions of the external threads on the first rod 221 and the second rod 222 are opposite. The external thread on the first rod 221 is rotationally matched with the internal thread on the first sleeve 212, and the external thread on the second rod 222 is rotationally matched with the internal thread on the second sleeve 213, so that when the tensioning wheel 210 rotates, the two tensioning rods 220 can move away from or approach each other in the first direction.

[0029] In a further embodiment, the two ends of the wedge block 400 along the axial direction of the conductor 100 are respectively referred to as the first end and the second end, and the distance from the first end to the axis of the conductor 100 along the first direction is greater than the distance from the second end to the axis of the conductor 100 along the first direction, so that when the wedge block 400 moves along the axial direction of the conductor 100 in the body 300, the two wedge blocks 400 can approach or move away from each other in the first direction.

[0030] See attached Figure 5 As shown, the first end of the wedge block 400 is located above the second end thereof. When the tension direction of the wire 100 is upward, the upward movement of the wedge block 400 will make the two wedge blocks 400 approach each other in their corresponding bodies 300 to clamp the wire 100.

[0031] Specifically, the body 300 is a trapezoidal structure, the large end of the body 300 and the first end of the wedge block 400 are located on the same side, and the small end of the body 300 and the second end of the wedge block 400 are located on the same side.

[0032] Providing the main body 300 with a trapezoidal structure helps to better disperse stress when fixing the cable and enhance the overall stability of the protective wire clamp.

[0033] A protective wire clamp also includes a hanging plate 600, the hanging plate 600 is a U-shaped structure, and both ends of the hanging plate 600 located on the same side are third free ends, the third free ends of the hanging plate 600 are arranged one-to-one with the body 300, and the third free ends of the hanging plate 600 and the corresponding body 300 are connected by bolts, and the hanging plate 600 is located on the side of the first end of the wedge block 400 away from the second end of the wedge block 400 in the axial direction of the conductor 100. The hanging plate 600 is used to be fixed on the tension insulator string of the non-linear pole tower to realize the installation of the protective wire clamp.

[0034] In a further embodiment, the first rod 221 is rotatably connected to the corresponding body 300 , and the second rod 222 is detachably connected to the corresponding body 300 .

[0035] Specifically, the two bodies 300 are respectively called the first body 310 and the second body 320, the first rod 221 is arranged corresponding to the first body 310, the second rod 222 is arranged corresponding to the second body 320, and the first rod 221 is rotatably connected to the first body 310, the second rod 222 is provided with a clamping block 223, and the second body 320 is provided with a clamping rod 321, and the clamping block 223 can be clamped with the clamping rod 321.

[0036] By setting a block 223 on the second rod 222, refer to the attached Fig. 9As shown, when installing the wire 100, the clamping block 223 is separated from the clamping rod 321 on the corresponding body 300, so as to facilitate the installation of the wire 100. After the wire 100 is placed between the two wedge blocks 400, the two bodies 300 can be rotated around the rotating shaft 500, and the clamping block 223 is clamped into the clamping rod 321 of the corresponding body 300, and then the tensioning wheel 210 is rotated for adjustment.

[0037] In a further embodiment, a plurality of tension wheels 210 are provided, and the plurality of tension wheels 210 are sequentially arranged along the axial direction of the conductor 100 .

[0038] In combination with the above embodiments, the specific working process is as follows: See attached Fig. 9 As shown, when installing the wire 100, the clamping block 223 is separated from the clamping rod 321 on the corresponding body 300, so as to facilitate the installation of the wire 100. After the wire 100 is placed between the two wedge blocks 400, the two bodies 300 can be rotated around the rotation axis 500, and the clamping block 223 is clamped into the clamping rod 321 of the corresponding body 300.

[0039] Then, the tensioning wheel 210 is rotated for adjustment. The tensioning wheel 210 is rotated to make the two tensioning rods 220 approach each other in the first direction, and then the two bodies 300 are approached each other in the first direction through the two tensioning rods 220. The two bodies 300 clamp the wire 100 through the wedge block 400. Specifically, the degree of clamping of the wedge block 400 on the wire 100 can be adjusted by adjusting the rotation direction of the tensioning wheel 210, thereby improving the accuracy of the adjustment.

[0040] In the subsequent use process, when the tension of the wire 100 causes the wedge block 400 and the wire 100 to slide synchronously relative to the main body 300, by setting the installation direction of the main body 300, when the wedge block 400 and the wire 100 slide synchronously relative to the main body 300, the wedge blocks 400 can approach each other in the first direction to tension the wire 100 to achieve adaptive tensioning, and due to the movement of the wire 100, the wire 100 will prompt the tensioning wheel 210 to rotate around the first direction, and by setting the rotation direction of the spiral cooperation between the tensioning wheel 210 and the tensioning rod 220, when the wire 100 moves along the direction of the tension and prompts the tensioning wheel 210 to rotate around the first direction, the two tensioning rods 220 can approach each other in the first direction to tension the wire 100, and dynamically adjust the tensioning force during use, and if relative sliding occurs between the wire 100 and the wedge block 400, the two tensioning rods 220 can also approach each other in the first direction to further enhance the tensioning effect on the wire 100.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A protective wire clamp for clamping a wire, characterized in that: It includes a tensioning mechanism and two bodies; the two bodies are arranged in sequence along a first direction and are respectively located on both sides of the wire, and the first direction is perpendicular to the axial direction of the wire; the two bodies are arranged face to face in the first direction, and the cross-section of the body perpendicular to the axial direction of the wire is a U-shaped structure, and the two ends on the same side of the body are respectively called the first free end and the second free end, the first free ends of the two bodies are rotatably connected, and the second free ends of the two bodies are connected through the tensioning mechanism; a wedge block is slidably arranged on each of the two bodies, the wire is located between the two wedge blocks, and when the wedge block slides along its corresponding body, the body can make the two wedge blocks approach or move away from each other in the first direction, and the tensioning mechanism includes a tensioning wheel and two tensioning rods, the tensioning rods are arranged one by one with the bodies, each tensioning rod is arranged along the first direction and installed on the body corresponding to it, the tensioning wheel is located between the two tensioning rods and spirally matched with the two tensioning rods, the tensioning wheel contacts the wire and can rotate around the first direction, and the rotation of the tensioning wheel around the first direction can make the two tensioning rods approach or move away from each other in the first direction.

2. A protective wire clamp according to claim 1, characterized in that: The first free ends of the two bodies are rotatably connected via a rotating shaft.

3. A protective wire clamp according to claim 1, characterized in that: The tensioning wheel includes a wheel body and two sleeves. The two sleeves are arranged along the first direction. The two sleeves are respectively located at the two ends of the wheel body in the first direction. The sleeves and the tensioning rods are arranged in a one-to-one correspondence, and the sleeves are spirally matched with the corresponding tensioning rods.

4. A protective wire clamp according to claim 3, characterized in that: The two sleeves are respectively called the first sleeve and the second sleeve, and the first sleeve and the second sleeve are both provided with internal threads, and the thread rotation directions of the internal threads on the first sleeve and the second sleeve are opposite. The two tensioning rods are respectively called the first rod and the second rod, and the first rod and the second rod are both provided with external threads, and the thread rotation directions of the external threads on the first rod and the second rod are opposite. The external thread on the first rod is rotationally matched with the internal thread on the first sleeve, and the external thread on the second rod is rotationally matched with the internal thread on the second sleeve.

5. The protective wire clamp according to claim 1, characterized in that: The two ends of the wedge block along the conductor axis are respectively called the first end and the second end. The distance from the first end to the conductor axis is greater than the distance from the second end to the conductor axis.

6. A protective wire clamp according to claim 5, characterized in that: It also includes a hanging plate, which is a U-shaped structure. Both ends of the hanging plate on the same side are third free ends. The third free ends of the hanging plate are arranged in a one-to-one correspondence with the main body. The third free ends of the hanging plate and the corresponding main body are connected by bolts. The hanging plate is located on the side of the first end of the wedge block away from the second end of the wedge block in the axial direction of the wire.

7. A protective wire clamp according to claim 4, characterized in that: The first rod is rotatably connected to a corresponding body, and the second rod is detachably connected to a corresponding body.

8. A protective wire clamp according to claim 7, characterized in that: The two bodies are respectively called the first body and the second body. The first rod is correspondingly arranged with the first body, and the second rod is correspondingly arranged with the second body. The first rod is rotatably connected with the first body, a clamping block is arranged on the second rod, and a clamping rod is arranged on the second body. The clamping block can be clamped with the clamping rod.

9. The protective wire clamp according to claim 1, characterized in that: A plurality of tension wheels are provided, and the plurality of tension wheels are arranged in sequence along the axial direction of the conductor.

10. The protective wire clamp according to claim 1, characterized in that: Reinforcing ribs are fixedly arranged on the surfaces of the two bodies.

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